in houston last year, a 6-year-old took a loaded handgun to school. the gun went off. three kids were wounded. many in this country say enough is enough. i'm joined tonight by congressman keith ellison of minnesota and msnbc political analyst and georgetown university professor michael eric dyson. gentlemen, thank you for your time tonight. i'll have an open question to both of you. professor, we'll go with you first. we talk about change in society. what does it take for us to change what we are seeing unfold before our eyes? >> well, ed, our hearts go out to all the victims of this most recent crime and tragedy. the reality is we've got to face the fact that we are addicted to violence in this culture, that at every level we reinforce the notion that violence is an apt resolution of conflict. and beyond that, we've got to deal with the fact that the ready accessibility of guns has led to devastating consequences for untold americans. because it's not only the immediate event that induces trauma, it's the psychic trauma that is endured by those who look at this event